Inspection/Vehicle Speed Sensor

CHECK VEHICLE SPEED SENSOR OUTPUT

Remove vehicle speed sensor from transmission.
Check voltage between the combination meter terminal and ground while quickly turning speed sensor pinion.

CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS

Terminals			Voltage
(+)		(-)
Connector	Terminal (Wire color)	(-)
QG18DE (WITHOUT TACHOMETER)
M30	29 (R/Y)	Ground	Approx. 0.5V
QG18DE (WITH TACHOMETER)
M30	47 (R/Y)	Ground	Approx. 0.5V
QR25DE
M29	17 (R/Y)	Ground	Approx. 0.5V

OK or NG

OK: Vehicle speed sensor is OK.

NG: GO TO 2.

Fig 1: Checking Voltage Between Combination Meter Terminal And Ground

G04195434

Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK VEHICLE SPEED SENSOR
Check resistance between vehicle speed sensor connector F43 terminals 1 and 2 (with QG18DE), or connector F36 terminals + and - (with QR25DE).

Resistance Approx. 250Ω

Ok or NG

OK: Check the following.
- Harness between combination meter and vehicle speed sensor.
- Vehicle speed sensor ground circuit.
NG: Replace vehicle speed sensor.

Fig 2: Checking Resistance Between Vehicle Speed Sensor Connector F43 Terminals 1 And 2
Courtesy of NISSAN MOTOR CO., U.S.A.